Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B7/00—Special arrangements or measures in connection with doors or windows
  • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
  • E06B7/08—Louvre doors, windows or grilles
  • E06B7/082—Louvre doors, windows or grilles with rigid or slidable lamellae

Definitions

• the present invention relates to vertical ventilation arrangements.
• a better protection against horizontal rain can be achieved by a tight labyrinth structure, but increased air flow resistance decreases ventilation capability.
• a higher degree of protection against access to hazardous parts and against solid foreign objects indicated by the first characteristic numeral of the IP code may be needed in order to ensure that no faults will occur in the equipment installed inside the enclosure and/or compartment.
• a higher degree of protection against ingress of water indicated by the second characteristic numeral of the IP code may be needed to protect the equipment inside the enclosure and/or compartment.
• IP3X access of objects less than 2.5mm
• IP4X access of objects less than 1 mm
• IPX5 water jet
• An object of the present invention is to provide an improved ventilation grid.
• the object is achieved with an invention, which is defined in the independent claim. Some embodiments are disclosed in the dependent claims.
• Figure 2 shows another embodiment a ventilation grid with a mesh
• Figure 3 shows a perspective view of back side
• Figure 4 shows a perspective view of front side, an inner grid in open pol o sition and a mesh partly taken out;
• Figure 5 shows a perspective view of back side, an inner grid in open position and a mesh partly taken out.
• Figure 1 shows a cut view on an embodiment of the invention.
• An outer grid (1 ) comprises a first frame (2), preferably made of metallic or glass reinforced polyester rectangular tube, shaped as rectangular or square, comprising lower horizontal beam (3) and upper horizontal beam (not shown), fixed together by vertical beams (4).
• the shape of the first frame may also be different of that, even like round or ellipse.
• the first frame (2) is for fitting the ventilation grid as a one device on an opening of a wall.
• the ventilation grid may be fitted on a door of the enclosure, as well.
• the frame of the door may also serve as a first frame for the ventilation grid, or at least some beams of the frames may be common for a door and the first frame.
• the outer ribs (5) preferably have unequal legs, cross-section being shaped as a letter "L” upside down with two substantially straight legs (6,7) substan- tially perpendicular to each other, extending from the connecting point (8).
• the angle between the legs (6,7) is preferably about 90 degrees, but may vary from that angle within the scope of the invention. If significantly a smaller angle, the flow resistance may increase because the space between two adjacent ribs is getting smaller. If the angle is significantly bigger than 90 degrees, the capability to prevent water penetrat- ing may be not so good.
• the inner and outer radius of the corner of "L” may vary from very small diameter like sharp "L" to a more rounded one.
• the first leg (6) of the outer rib (5) is preferably longer than the second leg (7).
• the outer ribs (5) are aligned on a way that a connecting point (8) connecting the legs (6,7) to each other is on most of the top and both side legs are downwards for draining rain water down.
• the connecting point constitutes a longitudinal corner of the L-shaped rib.
• the outermost first leg (6) is preferably longer than the innermost second leg (7).
• the outermost first leg (6) is for receiving a rain and preventing the water or sand or snow penetration significantly through the outer grid (1 ).
• the innermost second leg (7) is directing water etc. downwards but also preventing any thick rigid object to be pushed through the outer grid (1 ).
• the ventilation grid according to the invention further comprises an inner grid (9), adjacent to the outer grid (1 ).
• the inner grid (9) comprises substantially horizontal inner ribs (10).
• FIG 2 shows another embodiment of the ventilation grid with a mesh (15) arranged on a vertical direction in between the outer grid (1 ) and the inner grid (9).
• the mesh (15) extends on vertical and horizontal directions on the space of openings of the frames of the grids.
• the mesh (1 5) may have its own frame to keep the mesh on a planar shape.
• Class IP3X means maximum apertures of 2,5 mm
• class IP4X means maximum apertures of 1 mm. Different measures, smaller or larger of the mesh may be used depending of the need.
• the mesh (15) prevents bees or other type of insects to pass the ventilation grid. Another benefit is that the mesh may brake the water into smaller drops, thus hindering them to pass through the ventilation grid.
• the mesh may be fabricated by punching openings on a sheet of metal or plastic, preferably of stainless steel for hard environmental requirements, like close to the sea with corrosive salt water. A wire mesh of thin wires may have the lowest flow resistance.
• FIG 3 shows an embodiment of the inner grid (9).
• the inner grid (9) comprises a second frame (16) comprising beam elements corresponding to the shape of the beams of the first frame (2) of the outer grid (1 ).
• the inner grid (9) beams of the second frame (16) may be more light structure because the inner grid (9) is protected against vandalism by the outer grid (1 ).
• the inner grid (9) comprises substantially horizontal inner ribs (10) located between the vertical beams (1 7), which inner ribs (10) are fixed to the vertical beams (17) of the second frame e.g. by welding or gluing.
• the inner ribs (10) may pass through openings (18) on the vertical beams (17) making easier to fix the inner ribs on a right position, having an equal space from rib to the adjacent rib with an equal and desired angle.
• the inner ribs (10) may be fixed by welding or be glued to the vertical beams (1 7).
• the inner ribs (10) may pass through the openings (18) and be bent by the outer edge of the openings (18) of the vertical beams, preventing the ribs move on a hori- zontal direction.
• the vertical beams (17) have a cross-shape of U- beam or rectangular, where the openings are on the inner legs thus the outer legs are preventing or at least limiting the horizontal movement of the inner ribs (10).
• the inner grid (9) may be fixed detachable to outer grid (1 ) from its sec- ond frame (1 6) by screws, or the inner grid (9) may be hinged allowing turning around the axis of rotation axle of the hinges (19).
• the hinged inner grid (9) may be lockable by at least one screw or any type of quick locking members, like a latch, allowing easy opening. When opened the inner grid (9), the surfaces of the outer ribs (5) and inner ribs (10) are easy to be cleaned.
• the mesh (1 5) could be installed between inner and outer grids and be taken out for cleaning or may be replaced to another one.
• Figure 3 shows fixing members (20), preferably metal sheet strips of the outer grid (1 ), attached to the inner side of the first frame (2) of the outer grid (1 ), allowing to fix the ventilation grid from the inner side of the wall or a door, preventing to remove the ventilation grid from outside of the enclosure by vandals or by children.
• the vertical inner beams (1 7) of the inner grid (9) may extend lower than the nethermost inner rib. Apertures (21 ) may be punched close to the end of the vertical beam (17) for receiving a bolt (22) of a hinge (19) for allowing turning the inner grid (9) from a closed position to an open position.
• a bracket (23) of the hinge (19) may be fixed directly to the inner side of the wall or a door, or to the first frame (2) of the outer grid (1 ), or the fixing member (20) of the outer grid (1 ).
• a hinge (19) may have two brackets (23) and two bolts (22) or one long bolt (22) extending through the both vertical beams (17) of the inner grid (9).
• Figure 4 shows a ventilation grid arranged on a door of a cabinet.
• the inner grid (9) is on an open position, the mesh (15) being partly taken out.
• the nethermost inner rib (12) of the inner grid (9) extends on the horizontal level to the outer side of the lower horizontal beam (3) of the outer grid (1 ), for draining the water drops out.
• the nethermost inner rib (12) is on a withdrawn position and not extending to the outer surface level of the outer grid (1 ).
• Figure 5 shows the ventilation grid from the inner side of a cabinet door.
• the inner grid (9) is on an open position and the mesh (15) is partly taken out.

Landscapes

• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
• Catching Or Destruction (AREA)
• Ventilation (AREA)
• Air-Flow Control Members (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=51687966

Family Applications (1)

Country Status (6)

Families Citing this family (2)

Citations (5)

Family Cites Families (1)

• 2014
  • 2014-10-13 DK DK14188643.2T patent/DK3009591T3/da active
  • 2014-10-13 EP EP14188643.2A patent/EP3009591B1/en active Active
• 2015
  • 2015-10-07 WO PCT/EP2015/073123 patent/WO2016058883A1/en active Application Filing
  • 2015-10-07 CN CN201580063434.9A patent/CN107002455B/zh active Active
  • 2015-10-07 BR BR112017007445A patent/BR112017007445A2/pt not_active Application Discontinuation
  • 2015-10-07 AU AU2015332900A patent/AU2015332900B2/en not_active Ceased

Patent Citations (5)

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